package com.girls.dao;

import com.girls.model.Chain;

public interface ChainDao {
    //级联查询1对1
    public Chain getChainByID(Integer id);
    //分步查询,简单方法分多步
    public Chain simChainByID(Integer id);
    //分步查询延迟加载测试
    public Chain lazyChainByID(Integer id);
}
